I am pregnant by my MM

It would feel odd to call my dear partner something short like GF or SO, it would make her seem like an item in a catalog.

you mean your DP eh

To me that's a Displaced Person, but then I am a quite old European.

that was what I thought the first time someone used it in a cooking thread - I couldn't figure out why a home cook in the 1990's was cooking for a displaced person

I don't know that why does your husband think so?you can communicate with him.Then,you can solve this problem.Dont't lose your heart!